ASP.NET logic / connection pooling and error handing

using (SqlConnection conn = new SqlConnection(this.connectionString))
{
    using (SqlCommand cmd = conn.CreateCommand())
    {
        cmd.CommandText = "LoadFromRepository";
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.AddWithValue("@ID", fileID);

        conn.Open();
        using (SqlDataReader rdr =
                   cmd.ExecuteReader(CommandBehavior.CloseConnection))
        {
            while (rdr.Read())
            {
                // do something with read data
            }
        }
    }
}